The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 23, 2005
Filed:
Mar. 23, 2004
Michael W. Lynch, West Chester, OH (US);
Craig C. Meverden, Mason, OH (US);
Sandor Nagy, Mason, OH (US);
Karen L. Neal-hawkins, Cincinnati, OH (US);
Michael W. Lynch, West Chester, OH (US);
Craig C. Meverden, Mason, OH (US);
Sandor Nagy, Mason, OH (US);
Karen L. Neal-Hawkins, Cincinnati, OH (US);
Equistar Chemicals, LP, Houston, TX (US);
Abstract
Single-site catalyst systems useful for polymerizing olefins are disclosed. The catalyst systems comprise an organometallic complex and an activator. The complex includes a Group 3-10 transition metal, M, and at least one indenoindolyl ligand that is pi-bonded to M. The activator is a reaction product ofan alkylaluminum compound and an organoboronic acid. Catalyst systems of the invention significantly outperform known catalyst systems that employ a metallocene complex and similar aluminoboronate activators.